.... cost. Chapter 2 Mining When uranium is extracted, pitchblende is broken up and mixed with sulfuric and nitric acids. It then dissolves into uranyl sulfate. With the addition of sodium hydroxide, uranium is precipitated as sodium diuranate which is known as the yellow oxide of uranium. To get uranium from carnotite, the ore must be finely ground and treated with a hot solution of caustic and potash to dissolve out the uranium, radium, and vanadium. And after the sandy matrix is washed away, the solution is treated with sulfuric acid and barium chloride. A caustic alkali solution is then .....

.... As people began to change from a hunting-gathering society to agriculturists, they settled in communities. Homes built among the wild brush were perfect prey to wildfires. Initially, wildfires were put out immediately and people were barred from setting fires in open spaces. Due to the policy of fire suppression, only one percent of all wildfires escaped early control. The land was safe from fires temporarily, but this set the stage for catastrophe as the brush grew more dense. There have been more than 20 catastrophic wildfires in Los Angeles County since the beginning of organized .....

.... to 1986 the argument continues in the courtroom, and many, many books have been written debating the issue. Let us look at the three theories in depth. The evolutionist theory made known by Charles Darwin, states that humans came from his theory “survival of the fittest.” Charles Darwin based his theory on individual chances that determined the fate of the species. “Charles Darwin as we recall based his explanation of natural selection among individuals with equal chances of survival upon the following principles. The phenomenon of species change results from the fact that in each gene .....

.... CFCs are trapping more heat in the earth's atmosphere. CFCs have also been blamed for ozone depletion. CFCs are suspected of breaking down ozone particles that shield us from the sun's ultraviolet rays. Too many ultraviolet rays can cause cataracts and skin cancer. A hole in the ozone has been discovered over Antarctic the size of the United States. The hole is actually where the ozone has been depleted or thinned by the CFCs. The use of aerosol cans accounts for most of the release of CFCs. This resulted in the United Stated as well as other countries outlawing the use of these h .....

.... is first to the southwest and then turning toward the southeast. are characterized by strong winds and pouring rain. Thunderstorms and waterspouts appear in the storm's cloud system. All contain an eye. The eye of a hurricane is a low pressure, calm area in the middle of the storm. The air in the eye is sinking and this causes there to be no rain in this area and little wind. This gives the impression that the storm has passed through. It is not safe yet though. Within a few hours depending on the size of the hurricane the other side of the storm will sweep through an area with .....

.... than in the province of Ontario. Ontarians walk above groundwater supplies everyday, without the slightest notion of the extent to which they rely on this over-used and exploited natural resource. Canada as a whole "has far more water underground than on the surface - perhaps 65 times more than in surface lakes and streams",(Gorrie 70-71), and the same holds true for Ontario. Outside of the major urban centres which rely predominantly on surface sources for their water, most of Ontario relies on groundwater supplies. Although these groundwater supplies are abundant, not all are usable. In .....

.... tea on his list of medicinal herbs. John Blofeld, in Chinese Art of Tea, writes that ¡§it can be confidently stated that tea was known in the three kingdoms epoch (AD 222-277).¡¨ More importantly, however, ¡§tea [was] originally drunk for its medicinal properties.¡¨ (Blofeld 4) Evans links the early popularity of tea to Taoist religious practices during the Qin Dynasty (201 ¡V 207 B.C.). ¡§Taoists in particular became obsessed by long life and an Elixir of Life became a Taoist ideal. For Taoists the Elixir of Life was believed to be tea.¡¨ (Evans 20) Almost every writer who reco .....

.... me choose this for my education. Next I had to perform and even harder task, choosing a major. It's very difficult to decide what you want to do with the rest of your life in just a short time. I had the plans of working in the woods, so I talked with some friends who work with wildlife conservation and they told me parks and recreation was the way to go. After this strenuous research, I was very glad to get it over with. Another time I used research was when I restored my car. When I bought the rusty seventy Chevelle convertible, I thought there was no hope for it. I had little ex .....

.... runs past the Central Prison, where some of the incarcerated swam to freedom as Mitch's floodwaters rose and propelled them over the walls. Hundreds of homes, streets, and businesses were washed away, and those that remained standing found themselves anchored beneath several feet of mud and debris. In some places, the stench is overpowering. The smell from intermingled garbage, rotting food, rancid floodwater, animal and -- very possibly -- human corpses fills the air. Yet still people work near the water, clean goods in it, even bathe in it. The potential for disease cannot be under .....

.... quality foods, create new lives, and cure diseases. In May of 1994, the Food and Drug Administration approved a genetically engineered tomato called “Flavr Savr”. Many people cringe at the thought of eating them. These tomatoes, though, are proven better and healthier even though they are slow ripening. The idea of altering a plant's traits seems radical and new, but scientists have been doing it for years by breeding desired qualities into crops (Henkel 10). “Subsequently, seven vegetables were brought to market under the Pre-Market Notification, PostMarket Authority approach th .....